Get your friends and tell them to answer the series of questions!

Or, if you are interested in a girl’s (supposedly) secret age, try this series of question on her.

This is a rather good trick which deviate the attention from your friends to get them to rake their brains on these calculations!
And viola! Much to to their surprise, you already “guessed” their age correctly. And they are the ones who actually give you their age.

Start without telling them what you are trying to find out and ask them to answer the series of questions:

1. Ask you friend to pick the number of times they like to eat out(or any other questions). This has to be in the range of more than 1 to less than 10, so pick a smart question!
2. Multiply this number by 2.
3. Add 5.
4. Multiply it by 50.
5. If you have already had your birthday this year add 1758. If you haven’t, add 1757.
6. Now subtract the four digit year that you were born.
7. Tell them to give you the answer.

You should have a three digit number.
The first digit of this is how often you’d like to go out to eat at a restaurant and the next two numbers are your age!

By the way, this is the only year this will work (2008).

But in 2009 or thereafter, just add the difference in years between 200x and 2008!

Oh yeah, it will be a good party trick if your victims don’t get turn off before they complete the calculations.